Unauthenticated Remote Access and Full Control Vulnerability in Kura Distribution

CVE-2017-7649 · HIGH Severity

AV:N/AC:L/AU:N/C:C/I:C/A:C

The network enabled distribution of Kura before 2.1.0 takes control over the device's firewall setup but does not allow IPv6 firewall rules to be configured. Still the Equinox console port 5002 is left open, allowing to log into Kura without any user credentials over unencrypted telnet and executing commands using the Equinox "exec" command. As the process is running as "root" full control over the device can be acquired. IPv6 is also left in auto-configuration mode, accepting router advertisements automatically and assigns a MAC address based IPv6 address.

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